The ink provides an excellent dark black to projects. The versatile, highly workable formula is non-fading and dries to an opaque, semi-gloss finish. Use with calligraphy pens, brushes, technical pens and airbrushes. It can also be used on scratch board, in crafts and for a variety of other applications. his package contains one 1 fl. oz bottle of black ink. Non-toxic and conforms to ASTM D4236. Made in USA.